Food mixer



FIG. 1 is a front perspective view of a food mixer embodying my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a right-hand side elevational view thereof; and

FIG. 7 is a left-hand side elevational view thereof. 

The ornamental design for a food mixer, as shown and described. 